It looks somehow random that the SSH-port was simply defined in the
configuration of the k3s-setup. It looks somehow "configurable" although
it isn't. Therefore I moved this setting to the correct place in the
terraform-setup.
An important side-note is that this change doesn't make it possible to
_change_ the ssh-port, though. Once decided for an port and I have to
stick to it until I tear down the cluster!
This changes makes it easier to differentiate and understand the
different parts of the kubernetes setup. On one hand we have the bare
infrastructure (servers, network, etc), on the other hand we have the
software (k3s in this case).
In the future we'll have a few more parts, like the minimal
configuration of the kubernetes cluster, e.g. with a cert-manager. This
is easier to manage with helm or terraform than with ansible. Therefore
it makes even more sense to split the responsibilities into dedicated
directories.
